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Physics 914 MCQs [All-Courses]

Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

In which quadrant the two rectangular components of a vector have same sign ?

A 1st

B 2nd

C Both 1st and 3rd

D 4th

Review Detailed Answer

Correct Answer: 1st

The name of the photon for quantum of light was proposed by________________?

A Ampere

B Plank

C Thomson

D Einstein

Review Detailed Answer

Correct Answer: Einstein

What is the angle that the given vector makes with y-axis and A=2i+3j ?

A 30°

B 60°

C 90°

D 120°

Review Detailed Answer

Correct Answer: 60°

As the temperature of black body is raised the wavelength corresponding to maximum intensity________________?

A shifts towards longer wavelength

B shifts towards shorter wavelength

C remain the same

D shifts towards longer as well as shorter wavelengths

Review Detailed Answer

Correct Answer: shifts towards shorter wavelength

A central force is that which__________________?

A Can produce torque

B Cannot produce torque

C Some time can produce torque some time cannot

D Has no relation with torque

Review Detailed Answer

Correct Answer: Cannot produce torque

Einstein’s photoelectric equation is given by_______________?

A 1/2 mvmax2=hf+Φ

B 1/2 mvmax2-hf = Φ

C 1/2 mvmax2=hf-Φ

D All of above are correct

Review Detailed Answer

Correct Answer: 1/2 mvmax2=hf-Φ

If A=Ax i^ + Ay j^ + Az K^ B = Bx i^ + By j^ + Bz K^ then______________?

A A. B = Ax Bx + Ay By + Az Bz

B A. B = Ax By + Ay Bz + Az By

C A. B = Ay Bz + Az By + Az Bx

D A. B = Ax Bz + Ay By + Az Bx

Review Detailed Answer

Correct Answer: A. B = Ax Bx + Ay By + Az Bz

Rest mass of a photon is________________?

A infinite

B zero

C very small

D 1.67 x 10-27 kg

Review Detailed Answer

Correct Answer: zero

The magnitude of i^. (j^ x k^) is________________?

A 0

B 1

C -1

D i^

Review Detailed Answer

Correct Answer: 1

If a material object moves with speed of light its mass becomes ________________?

A equal to its rest mass

B double of its rest mass

C infinite

D zero

Review Detailed Answer

Correct Answer: infinite

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Physics 914 MCQs [All-Courses]

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All Topics 914

In which quadrant the two rectangular components of a vector have same sign ?

The name of the photon for quantum of light was proposed by________________?

What is the angle that the given vector makes with y-axis and A=2i+3j ?

As the temperature of black body is raised the wavelength corresponding to maximum intensity________________?

A central force is that which__________________?

Einstein’s photoelectric equation is given by_______________?

If A=Ax i^ + Ay j^ + Az K^ B = Bx i^ + By j^ + Bz K^ then______________?

Rest mass of a photon is________________?

The magnitude of i^. (j^ x k^) is________________?

If a material object moves with speed of light its mass becomes ________________?